Magnetized particles in a meteorite suggest strong magnetic fields in the early solar nebula.
A new analysis of iron meteorites reveals a distinct isotopic signature that suggests nitrogen was present around early Earth.
Using upcoming ground- and space-based telescopes, scientists hope to make similar observations of the skies of distant, Earth-like exoplanets.
Clouds form and dissipate on a gas giant orbiting a Sun-like star.
Several dwarf galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud.
A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.
Can a star make planets with 10% of what the Sun had to work with? A synergy between two powerhouse survey telescopes is helping astronomers find that answer.
The exoplanet candidate, tentatively named Proxima c, would be a frozen snowball.
The planet is also shaped like a football (the American kind).
This August, we look at the relationship we have to our closest star for AGU’s Centennial.